Figure 1.

A simplified scenario of early human migration routes and dates. Modern humans originated
in Africa, probably around 200,000 years ago (200 KYA). One or more routes out of
Africa are possible, but the number of individuals involved was very limited, with
perhaps only 600 females. Migration probably followed a coastal route, with humans
arriving in the Indian subcontinent about 70,000 years ago. The analysis by Shi et al. [2] suggests that humans arrived in southern East Asia around 60,000 years ago and then
proceeded north to occupy northern East Asia and Japan.